Finding the Fourth Proportional to 289,860.15, 399,998.91 and 160,797.99
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Solution
The fourth proportional to 289,860.15, 399,998.91 and 160,797.99 is: 221,896.73
Step by Step Solution
- Step 1: Write the proportion equation
289,860.15 : 399,998.91 = 160,797.99 : x - Step 2: Convert to fraction form
289,860.15/399,998.91 = 160,797.99/x - Step 3: Cross multiply
289,860.15x = 399,998.91 × 160,797.99 - Step 4: Simplify right side
289,860.15x = 64,319,020,730.19 - Step 5: Solve for x
x = 64,319,020,730.19/289,860.15 - Step 6: Final answer
x = 221,896.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.